Enhancing simulations with intra-subject variability for improved psychophysical assessments.

ABSTRACT: Psychometric properties of perceptual assessments, like reliability, depend on stochastic properties of psychophysical sampling procedures resulting in method variability, as well as inter- and intra-subject variability. Method variability is commonly minimized by optimizing sampling procedures through computer simulations. Inter-subject variability is inherent to the population of interest and cannot be influenced. Intra-subject variability introduced by confounds (e.g., inattention or lack of motivation) cannot be simply quantified from experimental data, as these data also include method variability. Therefore, this aspect is generally neglected when developing assessments. Yet, comparing method variability and intra-subject variability could give insights on whether effort should be in

SUBMITTER: Rinderknecht MD 

PROVIDER: S-EPMC6312217 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature